Most Important 50 MCQs with Solutions
Human Anatomy & Physiology-1 1st Semester Unit 3 Most Important MCQs
Body fluids and blood:
Body fluids, composition, and functions of blood, hemopoiesis, formation of hemoglobin, anemia, mechanisms of coagulation, blood grouping, Rh factors, transfusion, its significance, and disorders of the blood, Reticuloendothelial system.
Lymphatic system:
Lymphatic organs and tissues, lymphatic vessels, lymph circulation, and functions of the lymphatic system
Multiple Choice Questions
1. A respiratory pigment is absent in
(a) Earthworm
(b) Frog
(c) Rabbit
(d) CockroachAnswer
Answer: (d)
2. What would be the cardiac output of a person having 72 heartbeats per minute and a stroke volume of 50 ml?
(a) 360 ml
(b) 7200 ml
(c) 5000 ml
(d) 3600 ml
Answer: (d)
3. Sickle cell anemia is induced by:
(a) change of amino acid in A- chain of hemoglobin
(b) change of amino acid in the B-chain of hemoglobin
(c) change of amino acid in both B- and A-chain of hemoglobin
(d) change of amino acid in either A- or B-chain of hemoglobin
Answer: (b)
4. Pacemaker influences:
(a) Contraction of heart muscles
(b) Flow of blood in the heat
(c) Rate of heartbeat
(d) Formation of nerve impulse
Answer: (c)
5. Angina pectoris is very often mistaken for
(a) Chest pain
(b) Apnea
(c) Indigestion
(d) Severe headache
Answer: (c)
6. In ECG, the depolarisation of atria is indicated by
(a) S-wave
(b) R-wave
(c) P-wave
(d) Q-wave
Answer: (c)
7. As age advances, there is a gradual thinning of hair in human males. This is mainly because of lowered:
(a) blood supply
(b) synthesis of proteins
(c) synthesis of glycogen
(d) availability of energy
Answer: (b)
8. Blood of which vessel in mammals carries the least percentage of urea
(a) Dorsal aorta
(b) Renal vein
(c) Renal artery
(d) Posterior vena cava
Answer: (b)
9. The middle man of our body is:
(a) Kidney
(b) Lymph
(c) Heart
(d) Blood
Answer: (b)
10. The first heart transplant was performed by:
(a) William Harvey
(b) Watson
(c) Christian Bernard
(d) Khorana
Answer: (c)
11. In adult men, normal blood pressure is
(a) 100/80 mm Hg
(b) 80/120 mm Hg
(c) 100/120 mm Hg
(d) 120/80 mm Hg
Answer: (d)
12. The SA node is located in
(a) Upper lateral wall of the left atrium
(b) Lower lateral wall of the right atrium
(c) Lower lateral wall of the left atrium
(d) Upper lateral wall of the right atrium
Answer: (d)
13. Red cell count is carried out by
(a) Haemoglobinometer
(b) Haemocytometer
(c) Electrocardiogram
(d) Sphygmomanometer
Answer: (b)
14. Pawan stood still for a long time and he felt swelling in his feet. What would you suggest to him :
(a) Ask for some medicine to cure the swelling of his feet
(b) Drink a cup of tea
(c) Jerk or wriggle his legs to restart circulation
(d) Keep on standing and do some shoulder exercise
Answer: (c)
15. Which artery supplies blood to the diaphragm:-
(a) Phrenic
(b) Splenic
(c) Renal
(d) Caudal
Answer: (a)
16. The layer of heart pericardium which checks its overstretching and overfilling as well as also protects the heart from mechanical injury is :
(a) Serous pericardium
(b) Visceral pericardium
(c) Parietal pericardium
(d) Fibrous pericardium
Answer: (d)
17. The statement incorrect about the human heart is
(a) It is derived from endoderm.
(b) It is myogenic.
(c) Wall of the left ventricle is the thickest.
(d) It is four-chambered.
Answer: (a)
18. All arteries carry oxygenated blood except:
(a) Systemic
(b) Hepatic
(c) Pulmonary
(d) Cardiac
Answer: (c)
19. The artery is a blood vessel that carries blood
(a) Away from the heart
(b) Towards the heart
(c) Has deoxygenated blood without exception
(d) None of the above
Answer: (a)
20. The role of the spleen in mammals is
(a) To control Blood pressure
(b) To assist the liver
(c) To assist kidneys
(d) To act as hemopoietic tissue in the embryo
Answer: (d)
21. The cardiovascular center is located in
(a) Cerebellum
(b) Cerebrum
(c) Pons
(d) Medulla oblongata
Answer: (d)
22. Systolic pressure is higher than diastolic pressure due to:
(a) Volume of blood in the heart is greater during systole
(b) Arteries contract during systole
(c) Blood vessels offer resistance to flowing blood during systole
(d) Blood is forced into arteries during systole.
Answer: (d)
23. Which of the following statements is true for lymph?
(a) WBC and serum
(b) All components of blood except RBCs and some proteins
(c) RBCs, WBCs, and Plasma
(d) RBCs proteins and platelets
Answer: (b)
24. Blood enters the heart because the muscles of the
(a) Ventricles contract
(b) Ventricles relax
(c) Atria contract
(d) Atria relax
Answer: (d)
25. A renal portal system is found in:
(a) Rabbit
(b) Mouse
(c) Horse
(d) Frog
Answer: (d)
26. In systemic circulation, blood vessel that carries blood from the intestine to the liver is named
(a) Hepatic portal arch
(b) None of these
(c) Hepatic portal artery
(d) Hepatic portal vein
Answer: (d)
27. The pre-hypertension blood pressure value is a measurement between :
(a) 120/80 and 139/89
(b) 139/89 and 140/90
(c) 120/80 and 140/90
(d) 100/70 and 120/80
Answer: (a)
28. Which one of the following statements about blood constituents and the transport of respiratory gases is most accurate?
(a) RBCs transport oxygen whereas WBCs transport CO2
(b) RBCs transport oxygen whereas plasma transports only CO2
(c) RBCs as well as WBCs transport both oxygen and CO2
(d) RBCs as well as plasma transport both oxygen and CO2
Answer: (d)
29. Father of Angiology is:
(a) William Harvey
(b) Batson
(c) Marsello Malpighi
(d) Landsteinar
Answer: (a)
30. Antigens are present
(a) inside the nucleus
(b) on cell surface
(c) inside the cytoplasm
(d) on nuclear membrane
Answer: (b)
31. The specialized patch of modified heart muscles from where contraction initiates are:
(a) Pacesetter of heart
(b) Both SAN and AVN together
(c) Pacemaker of heart
(d) None of the Above
Answer: (c)
32. The Carotid artery carries the blood which is:
(a) Impure blood to kidneys
(b) Oxygenated blood to the brain
(c) Oxygenated blood to the heart
(d) Impure blood from the brain
Answer: (b)
33. Which of the following component cause coagulation if introduced to the bloodstream?
(a) Fibrinogen
(b) Prothrombin
(c) Heparin
(d)Thromboplastin
Answer: (d)
34. Process of formation of blood corpuscles is called ____________
(a) hemolysis
(b) hemopoiesis
(c) hemozoin
(d) hemolytic
Ans: (b)
35. The normal blood pressure of an adult is __________
(a) 100/80 mm Hg
(b) 100/60 mm Hg
(c) 120/80 mm Hg
(d) 80/120 mm Hg
Answer: (c)
36. What is Pernicious anemia?
(a) Low RBC count
(b)Destruction of RBC maturation
(c) Death of WBC
(d) Low WBC count
Answer: (b)
37. Graveyard of RBC is ____________
(a) spleen
(b) liver
(c) stomach
(d) pancreas
Answer: (a)
38. Which leucocytes release heparin and histamine into the blood?
(a) Basophils
(b) Neutrophils
(c) Monocytes
(d) Lymphocytes
Answer: (a)
39. Which among the following is true regarding leucocytes?
(a) They are enucleated
(b) Produced in the thymus
(c) Sudden fall in the number indicates cancer
(d) They can squeeze through capillary walls
Answer: (d)
40. Largest sized RBC is seen in _______
(a) elephant
(b) whale
(c) man
(d) amphiuma
Answer: (d)
41. Irregular nuclei are seen in ______________
(a) basophils
(b) eosinophils
(c) monocytes
(d) neutrophil
Answer: (d)
42. Hemoglobin is a ___________
(a) respiratory pigment
(b) reproductive pigment
(c) fat
(d) carbohydrate
Answer: (a)
43. Hemophilia is due to the absence of __________
(a) factor VI
(b) factor VII
(c) factor VIII
(d) factor X
Answer: (c)
44. Which of the following is not the cellular element of blood?
(a) T cells
(b) B cells
(c) Plasma
(d) Monocytes
Answer: (c)
45. Red cell count is carried out using _____________
(a) electrocardiogram
(b) sphygmomanometer
(c) hemocytometer
(d) haemoglobinometer
Answer: (c)
46. How many types of blood groups are present?
(a) 1
(b) 2
(c) 3
(d) 4
Answer: (d)
47. Which of the following blood group is considered a universal donor?
(a) A
(b) B
(c) AB
(d) O
Answer: (d)
48. The antigens for ABO and Rh blood groups are present on ____________
(a) plasma
(b) white blood cells
(c) red blood cells
(d) platelets
Answer: (c)
49. Which of the following blood group is referred to as a universal recipient?
(a) A
(b) B
(c) AB
(d) O
Answer: (c)
50. What are the two blood tests?
(a) Rh and ABB
(b) ABO and Rh
(c) ABO and Rn
(d) ABC and Rh
Answer: (b)
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